Returns the Nagamura et al. (1997) rice linkage-map anchors (n ~ 1,450
RFLP markers with both physical and genetic positions; total map length
1,510 cM) that ship with the package. The engine interpolates these
anchors onto the physical positions of any PLINK `.bim` at run time, so
the same table is valid for any rice panel. Use the result as the
`genetic_map` argument of [hbr_advanced_decision()] when you want to
inspect it, subset it, or combine it with additional markers.
Value
A data.frame with columns `chr` (character), `bp` (numeric,
IRGSP-1.0 coordinates) and `cm` (numeric, Haldane/Kosambi-agnostic;
the engine uses Haldane's map function). The `source` attribute
records the reference and marker count.
Examples
m <- hbr_rice_genetic_map()
head(m)
#> chr bp cm
#> 1 1 148326.5 0.0
#> 2 1 198225.0 0.3
#> 3 1 577032.0 4.2
#> 4 1 649078.5 5.6
#> 5 1 921354.0 5.6
#> 6 1 1010335.0 5.6
attr(m, "source")
#> [1] "bundled rice genetic map (Nagamura et al. 1997, n = 1659 markers)"
